Paper-bag machine.



No. 814,006. PATBNTED FEB. 27, 1906. w. LIDDELL.

PAPER BAG MACHINE.

APPLICATION rum SEPT. 2, 1904.

5 SHEETS-SHEET 3.

In vendor. Witnesses lf illzzzw Z zddell No. 814,006. PATBNTBD FEB. 2'7, 1906. W LIDDBLL PAPER BAG MACHINE.

Arrmonnm mum 53212, 1904.

5 SHEETS-SHEET 4.

[7a aerator. W w fl zZZz'amL Z zZdeZZ No. 814,006. I PATENTE PEBJV, 1905.

w. LIDDBLL.

PAPER BAG MACHINE.

PI-momma nun Barns. 1904,

6 SHEETS-SHEET 5.

1?? mentor.- Wwnewes" il z'llz'aw 1 tam/ 82';

' Fig. 3.

UNITED STATES PAEENT OFFICE.

WILLIAM LIDDELL, F BROOKLYN, NEW YORK, ASSIGNOR TO CONTL NENTAL PAPER BAG COMPANY, A CORPORATION OF MAINE.

PAPER-BAG rqscsme.

Bpeoiflcation of Letters Patent.

Patented Feb. 27. 1906.

Brooklyn, in the county of Kings and State of New York,haveinvcnted'ccrtein new and useful Improvements in Paper-Beg Machines.

of which the following is e specification.

This invention'rclstes to spar-be machines, snd directiyto that c ass of site inschines as are provided with twocylindersor :rolls' between and on which one end of a paper tube having an inwardly-folded tuck in each side thereof is-opencd out and folded downinto the wellsknown diamond form.-

In the drawings accompanying this specification, Figure 1 represents a plan view, with some of the ports broken sway, of a. .partof e popcr bn'g machine, illustrating one form of Fig. 2 is a, side elevation, partly in section, online a a of Fig'l of the some. Fig.3 is a plan view, partly in secl-i0Il, 0f a modificd'form of side clips and their operative mechanism. Fig. 4 is an end clevution, pnrtly'in section, corresponding to Fig. Sis a side elevation,

ration o the supsccti'on, illustrating the o 1g. 6 is a front eleplcincptol Front finger.

vntion of the menus provided for stripping the dimnond-folded hlnnk from the pastescg'mcnt. Fig. 7 is a side elevation, pnrtiy in section, of the some and illustrating its opcr ntion. Fig, 8 is a detail elevation showing one of the side clips closed.

In the present embodiment of my improvcinents I have shown only such parts of epapeohog machine as are necessary to suitnhly illustrate my improvements, and therein J 3 represent a pmr of feed-rolls suitably mounted. preferably one above the other, on shafts IS 19, respectively, and revoluhlysuppoi-ted in upri hts 4 fixed on main frames 6 7, respective v. Roll 2 is provided with n crcnsor-hlmlc 9 7 and roll 3 with a corresponding 'crcnscr-grmwc 88 for forming the main transverse crease in the hug-blank as ssid block is fed lki-WOPII the rolls. Said crossing menus are for convenience placed onrolls 2 3 hut they could with equal sflicicncy be placed on rolls H) I I. Said rolls 2 3 nrc provided to food the ling-Monks to the folding cylinders or rolls )0 H, which rolls are suitably supported. preferably one -above the other, on shnlts 2U 21, respectively, revolulily supportfportly in ed in uprights S4). Said uprights are fixed on main frames 6 7,"respcctively, and at a suitable distance in advance of iced-rolls 2 3. Between rolls 2 3 andv 10 11 a, suitable table, as 112, is provided to assist the transfer of the he -blonks from the feed-rolls to the foldin --r0 8.

. omewhat below and to the left of foldingroll 11, Fig. 2, and mounted forroliing con tact therewith on shaft 22 in main frames 6 7 is ironin -roll 12. Still farther below is dolivery-ro l 13, mounted for rotation on shaft 23 in frames 6 7.

ssting and cressin segment 14 and below it is paste-transfer ro i 15, both mounted on their res motive shafts 24 25 in side frames 6 7. Fol ing or distcnding rolls 10 ll, ironingroll 12, paste-segment l4, and pesto-transfer voir 16. and roll- 17, which reservoir and roll may he supported hysomo convenient moons.

' (Not shown.)

The several rolls and segment just doscribcd may be caused to rotate with equal peripheral speeds in the directions of their respective arrows by means of suitable carin fast to their respective sup orting-shs. ts,-on which gearing is indicate in n general we by G in Fig. 1. As such gearing is of wol known character, further description thereof is deemed unnecessary. Power may be trnnsmitted to the projecting end of shaft 21 Fig. 1, and thence to the other parts of the mechine.

'Ref'erringnow more in detail to the means provided for forming: the diamond fold, roll 11 has pivotally mounted in brackets,ns 32, on each end thereof levers, as 27. At the free ends of said lovers are pivotnlly mounted side (-lips, as .29. Said lovers are urged toward their outcr positions, respectively, away from the roll by means of push-springs, us 31.

To the left of said roll 13 is,

On each end of roll 11 and projecting outwardly therefrom in the line of its axis and contiguous t their respective side cli s are brackets, as 35. Said brackets are eac provided with cam-slots, as 37, for engagement with earn-pins, as 39 on outwardly-extending portions of side clips 29 29, respectively. Cam-slots 37 are so shaped and disposed in their respective brackets 35 that when by the hereinafter-described means arms 27, Fig. 2, are moved inwardly toward roll 11 the blank engaging noses, as 40, Fig. l of side clips 29 are caused to move toward,over, and then down onto the face of said roll 11 or onto any bagblank suitably dis osed on the face of said roll. Also when evers 27 are allowed to swing outwardly away from roll 11 urged by their respective springs 31 said noses 40 of side clips 29 will be moved u wardlcy and backwardly from the face of roll 11 an then downwardly-below the level of the face thereof.

Levers 27 may be moved inwardlyby the following means: On upwardly-extending brackets 44 44,fast to a beam 46, which beam is in turn supported by main frames 6 7, respectively, are cams 43 43. Outwardly extending from each of levers 27 and referably relatively near the pivots thereof are arms carrying cam-rolls 47 47, respectively, for engagement with earns 43 43. To assist levers 27 27 to vibrate always in one plane with respect to roll 11, guide-brackets 49 49 are secured to opposite ends, respectively, of said roll for engagement with said levers, respectively.

For clam ing the lower ply of the mouth of the bag; )lank to lower roll 11 the usual front clip, as 51, is rovided. Said clip is secured to pivot-shaft 52, with which it is escillated in proper time to grip the bag-blank to the roll, by means of arm 53 on said shaft,

- and which arm carries roll 54 thereon for engagement with still cam 55 in reaching from upright 8. Said front clip 51 may be lifted' from engagement with the bag-blank or rollface by means of spring 56, coiled about the outboard portion of shaft 52, one end of the spring being secured to roll 11 and the other end to arm 53.

Roll 10 is provided with side clips 28, similar-to side clips 29 of roll 11, and operated by similar means, such as levers 26, having rolls '48 and guided by brackets 50, cams 42 and 34, cams 34 having slots' 36,&c.,respectively, except that earns 42 have shorter working faces than earns 43, respectively, as it is necessary that the side clips of roll 10 release their grip on the bag-blank before the side clips of re] 11 release their grip thereon.

In lieu of. a front clip similar to front clip 51 of roll 11 roll 10 is provided with one or more needles, as 57, projecting from its face, and which are ada ted to penetrate both the upper and lower plies of the bag-blank as that part of said roll bearing the needle or needles rolls into contact with the blank. As the for: ward endof the blank passes out from the bite of rolls 1() 11 front 011 51 in roll 1 strips off the lower ply of the bfank from sa' needles, which needles retain their hold on the upper pl of the blank and lead it upwardly around rol l0, Fi 5. Roll 11 may be rovided with suitab e cavities, as 58, into w ieh said needles 57 may pass uninjured as the rolls roll to ether. A suitable plow, as 59, Fig. 2, depending from cross-bar 60, is provided to strip the upper ply of the bag-blank from the needles at the pro er time. Said plow is preferably provide with horns 61, projectmg into grooves 62 in roll 10, whereb said horns are insured access under the a vaneing edge of the upper ply of the blank.

An alternate construction of the side-clip mechanism is shown, Figs. 3 and 4. The section of the major part of Fig. 3 is taken on line L? d of Fig. 4; but the section through the bearings of that figur is taken on line 0 c of said Fig. 4. The section of Fig. 4 is taken on line b b of Fig. 3, and a portion of the u per part of roll 10 is broken away to better s ow cams 440 and 68. InFigs. 3 and 4 each pair of side-clip levers, as 270 270, are pivotally mounted in opposite ends of a bar, as 63, which bar is mounted for approximately radial reciprocation in a slot, as 70, in one side of roll 1100. By these means side clips 290 290, fast to the free ends of levers 270 270, a

respectively, may be moved from below the level of the face of said roll to a position slightly above said face and then after being thrust inwardly over said roll-face may be lowered toward said face to grip the lower plies of a bag-blank thereon. The means provided to accomplish these movements are as follows: Pro ecting inwardly from side frames 6 7 are cams, as 64, for engaging horns 65, projecting from the ends, respectively, of bar 63. As said horns ride up the inclines at the forward ends, respectively, of ca ms 64 64 bar 63 will be moved inward] toward the center of roll 1100, and side .ci s 290 will thus be raised above the level 0 the face of said roll.

On outwardly-projecting arms 67 67 on levers 270 270, respectively, are mounted for rotation cam-rolls, as 47. Said rolls engage cams 430 430, extending inwardly from uprights 6 7, res ectively, and by which earns said rolls, and therefore side clips 290 290, are thrust inwardly just after said clips have been raised above the level of the face of roll 1100. Immediately thereafter horns 65 65 pass into depressions, as '69, in cams 64 64, whereby side clips 290 290 are lowered toward the face of said roll. In practice said successive upward, inward, and downward movements of the side clips may overla more or less, whereby more time may be a forded each movement. Horns 65 65 and rolls 47 47 ma be urged toward their res ective cams an levers 270 270 urged to their amped outerpositions, respectively, by means of springs, as' 71', whie 1 act a ain'st pro'eeting ears, as 72, provided there or on sai arms. Said springs are coiled around steady-posts, as 73, projecting from the ends of the roll, and the other ends of said springs thrust against posts, as 74, also projecting from the ends, respectively, of said roll. ,Guides, as 49, are provided on roll 1100 to assist levers 270 270 to travel in one plane as to said roll. Upper roll 1000 is provided with side clips, as 280, mounted and actuated in all ways similar to the side clips of roll 1100, except that cams 68 are shorter than earns 64, so as to cause thesido eli s of upper roll 1000 to open before the side 0 ips of lower roll 1100.

Ironing-roll 12 is provided with a supplemental front linger 75, pivoted at 77 at or near the periphery of said roll and arranged and ads ted to swing outwardly from said roll and impinge against that part of the for: ward end of the lower ply of the hag-blank on roll 11 where the paper is to be turned over for forming the forward end of the diamond fold. in the present instance the bagblank is shown as having slits in the forward end thereof whereby thodiamond fold is commenced a short distance back from the front edge of the blank, Fig. 5. lloll 12 may if desired, be considered simply as a carrier for the supplemental front finger, as the ironing that isfdone by said roll could he done by other means. Finger 75 is provided with a T head 76, whose width corresponds with the width of front flap 78 of the bag blank or with the desired width of separation of the turnod over portions of the forward end of the diamond fold. Finger 75 is moved outwar-div for engagement with roll 11 or with a bag-blhnk thereon -by,means of spring 79, coiled about the pro'ecting end of pivot-shaft 77. One end of sair spring is secured to roll i2 and the other end to collar 80, fast on the outer end of said shaft. The opposite end of said shaft 77 is provided with an arm81,bearing a roll 82 for engagement with still cam Said cam is supported on sleeve 84, projcrling inwardl Said earn, 1: rough roll 82, arm 81, and shaft 77, controls the outward movement of arm 7 5 and at the proper time retracts said arm to its inoperative osition, F ig. 2. Said spring 79 is also e active to urge roll 82 against cam 83. Shaft 22 of roll 12 is in two parts, said parts having a space between their inner ends, respectively, Fig. 1., so that finger 75 may swing across the center of roll 12, Fig. 5, without interference; also, roll 11 is provided with a groove 86 to allow shaft 77 in roll 12 to pass roll 11 without interference. )n a rod 840, supported in side frainesfi 7 is deflector 85 for bending downwardly the forward end of the diamond-folded blank as it emerges from between rolls 11 and 12 and directing it into the bite of rolls 12 and 13.

side clips being shown at 89, Fig. 2.

:to be made.

about shaft 22 from frame 7.

Said deflector may consist of two-compare? tively narrow plates 85 85, Fig. 1, so disposed as to allow the free passage of the flattened portions of shaft 77.

Each of the two folding-beds 95 96 of roll 13 may be provided with one or more pairs of oppositely-disposed side clips, one of gait;

L 8.1 clips maybe of some well-known construetionas,-for instance, a blade or cli 90, mounted on one end .of an outward y-extcndin arm having a roll 91 at the other end therco for en agemont with the usual actu atin -cam. ot shown.) Said arin is pivotal y supported for oscillation at 92 below the surface of the folding-bed 95. l olding bed 96 may also be rovided with side clips similar to those on folding-bed 95. The location of these clips in relation to their respective'folding-hcds is such that each oppositely disposcd pair may heactuatcd to grip a hag-blank suitably disposed on their res octave folding-bed directly in advance of tlie place where the rear flap folding crease is No such clips or, as for that matter, any clips are necessary on roll 13 for the practice of my invention, and the present clips are herein supplied as adjuncts to the later operations of folding the rear and. front flaps, but which foldings are no part of my present improvements, and therefore no means are provided therefor.

Folding bed is provided with two grooves Q7 98, and folding-bed {)6 .is provided with two grooves 99 100 for eoaction with creasonblades m1 102, respectively, of poster and crease! segment 14. Roll 13 is also provided with grooves 103 NM similar to groove .86 in roll 11 to allow the passage of shaft 7'7 in roll 12.

Between roll 12 and segment 14 is provided another deflector 94 similar and similarl mounted to deflector 85 for the purpose of ireeting the leadin r flap of the diamondfolded hag-blank on re 13 under segment 14.

Crosser and pastor segment 14 is provided with the usual paste-appl ing surfaces 103 and the usual creasing-blur es 101 102 for defining the positions res actively at which the rear and front flaps of t 1e bag-blank are to be folded over.

The tendency of the forward end of the (l ianiond-folded blank to cling to the paste-segment is in the present instance counteracted by the following means. Pivotally mounted at 104 in segment 14 is a rearwardly-reachitmg strippin -finger 105. Said-finger is normally disposer in a cavity in and below the surface of said so unent and preferably extends rearwardly o crcaser 102, said creaser having a cavity 106 therein for the reception of said finger. Fin er is preferably made of wire and coi ed one or more times about its shaft 104 and has the coiled end thereof fixed to said shaft. By means of said coils the fingag-(merit with cam Hit).

gel is allowed to yield a certain amount, whereby its aetion is rendered less luu'sh. ()n that end of pivot-shaft H14 extending toward the right hand in, Fig. 6 is lixed arm Hi7, hearing at its outer end roll 108 for en- Said cam is fixed to the inner end of sleeve 110, and the outer end of said sleeve is fixed to'frame 6. Shaft 24 passes through said sleeve and cam and rcvolves therein. The contour of cam 109 is such that as segment 14 turns in the direction of its arrow, Fig. 7, at the proper time roll 108 rides up onto the high part of said cam and arm 107, and conse uently finger 105 is moved outwardly, said inger passin without the periphery of segment 14 anil pressing away therefrom any bag-blank adering thereto, Fig. 7. Said strippingfinger is also efficient to counteract any tendency of the ba -blarik to clin to creaser-bl adc 102 after sai blade has pe ormed its function.

The operation of my improved machine is as" follows: The pa er-bag blanks which I preferably use are 0 the well-known tubular form. havin an inwardly-folded tuck in each side thereo and having the forward ends of the lower plies, respectively, projectin 1 slightly in advance of the upper phes thereo and having] each of said lower plies provided with two s 'ts of proper depth om the bases of which slits the front flap of the diamond fold sprin s. The forward end of a suitable blank, as bein now resented to the bite of feed-rolls 23 i 2, t e machine is started and the bag-blah is fed forward into engagement with creaser-blade 87 and creasergroove 88 in said rolls, respectively, and thence onward to distending-rolls 10 11, where. the forward end of the lower ply of the blank is delivered under the now open front finger 51 in roll 11. Said front finger then closes down onto the lower ply of the blank and grips it to the peripxiliery of the roll, Fig. 2.; losely fdllowing t '5 operation needles 57 roll onto and penetrate the blank. B

the continued forward movement of the rol s the lower pJly of the blank is led downwardly on roll: 11 is stripped from needles 57. Said need es, however, retain their hold on the upper ply of the blank and lead it upwardly on roll 10.

The resultant distending of the side tucks ofthe blank affords a free'entrance for the side clips, which by means of their respective 'roll 12 has been revolving in the direction of its arrow and supplemental front finger y clip 51, whereby said lower 1y wings to flatten down and hmsh the diamond fold; but as such means are not a part of my invention nor necessary thereto I have omitted them herein. he continued revolution of rolls 1011 continues the distension and folding down of the diamond fold into rol 10 release their hold and withdraw and the rear flap of the diamond fold is released from needles 57 by stripper 59. substantially folded diamond-folded blank still retained on roll 11 by means of finger 75 and side clips .29 passes under ironing-roll 12 whereby the diamond fold is rolled down an flattened. Fin er 75 is then withdrawn fronrthe front ap and is retracted to its normal position in ironin -roll 12. blank now passes over diafleetor 85, by whic said blank 18 directed onto folding-bed 96 of roll 13 and into the bite of rolls 12 and 13.

Said blank then passes onward under deflector 94 and under paster and crcaser segment 14. If side clips are employed on the folding-beds of roll 13, those of oldin -bed 96 close immediately after passing rol l2, Fi '7, at whichtime creaser 102 has just completed its operation. Shortly before this tune finger 105 commences its outward movement and ressin the forward end of the bag-blank efore 1t strips it from the paste-segment, as shown in Fig. 7. Segment 14 continues its rotation in coacting with roll 13 until creaser 101 engages andcreases the bag-blank. The diamond-folded and creased bag-blank may now be discharged from the machine or retained on folding-bed 96 of roll 13 by means of side clips 93 and conveyed therebv to some suitable means (not shown) for folding the end flaps and completing the bag.

I claim' 1. The combination of a folding-roll, a lever substantially radial to the roll pivoted at each-end of the roll, a side clip mounted in the free end of each lever, means for oscillating the levers toward and away from the roll and means for raising and lowering said levers in the plane of their length all combined and operating together substantially as described.

.2. The combination of a pair of distending rolls, side clips op ositely disposed on opposite ends of each tliereof respectively, means for moving the side clips into and out of engagement with their respective rolls and means for retracting said side clips radially approximate flatness when the side clips of The then The ba to positions below the faces of the rolls respectively, all combined. and operating togethcr substantially as describe 3. The combination "of a roll, a lever, pivotally mounted at each end thereof a side clip mounted in the free end of each lover, means to oscillate the levers lengthwise of the rolls and means to raise and lower the side clips both in their inward and outward positions substantially radially of the rolls, all combined and operating together substantially as described. V 4. The combination of a pair of distendingrolls, means for holding the upper and lower plies of the forward on of a bag-blank thereto respectively, a lever substantially radial to its respective roll, pivotally mounted at .each end of each of said rolls, a side clip,

mounted in the free end of each of said levers, means to oscillate the levers lon 'tudinally of the rolls andmeans to raise an lower the side clips substantially radiall of the rolls respectively, all combined an czlperating together substantially as describe 5. The combination of a roll, a bar 63 therein, reciprocatable inwardly and outwardly with respect of the periphery of the roll, cams 64 for reciprocatinglthe bar, a lever 270pivotally mounted in sac and of the bar, a si e clip 290 carried by each lever and cams 43 for oscillati the levers toward and from the roll, all com ined and operating together substantially as described.

a 6. The combination of a folding-roll, side clips mounted on said roll for reciprocation approximately radial thereto, means to reclprocate the side clips,and means for moving sald side clips longitudinally of said roll in a plane radial thereto in coaction with said reciprocation, all combined and operating together substantially as described.

7. The combination of a folding-roll, side clips and a front clip thereon, a revoluble car rier 12, a supplemental front fin er pivotally mounted in said carrier, means or revolving the carrier in time with the roll and for swinging saiii and outward] of finger inwardl saidcarrier or cooperation with the fol ingroll,' all combined and operating together substantially as described.

8. The combination of a folding-roll, side clips and ai'ront clip thereon, ironin -roll 12, supplemental front finger 75 PlVOtGI therein, means, comprising arm 81 and cam 8 3 for swinging said fin er inwardly and outwardly of the ironing-r0] for cooperation with the foldin -roll, and means for timing the ironing-rol with the foldingroll, all combined and operating together substantially as descr'be v 9. The combination of a distending-oylinder, means to gri a bag-blank thereto a rotatable carrier 11' jacent to the distendingcylinder, a supplemental front finger eccentrically pivoted in the rotatable carrier, means for o ratin said finger for engagement with t e baglank to revent tearin f in forming the diamond fol all combine and operating together substantially as described.

10. The combination of a revolublc foldingbed 96, means for holdin a bag-blank thereon, a revoluble pasting-w reel 14, a strippingfinger 105 mounted in said wheel for movement inwardly and outwardly thereof for coaction with the folding-bed, means to actuate the' stripping-finger and means for timing the pasting-wheel and the folding-bed, all cornined and operating together substantially as described.

11. The combination of a folding-roll, a lever substantially radial to the roll pivoted at each end of the roll, a side cli in the free end of each lever, means foroscillbting the levers toward and away from the roll and means for raisin and lowering the side clips radial to the r0 1 all combined and operating together substantially as described.

Signed this 31st day of August, 1904, at Rumford Falls, Maine, in the presence of two subscribing witnesses.

WILLIAM LIDDELL.

Witnesses:

HERMAN ELSLER, WILLIS PIPPERT. 

